* {
  margin: 0;
  padding: 0;
}

#body {
  background-color: #f9f9f9;
}

a {
  text-decoration: none;
}

ul {
  list-style: none;
}

.clearfix::after {
  content: "";
  display: block;
  clear: both;
}

.back-to-top-hidden {
  display: none;
}

.back-to-top {
  height: 30px;
  width: 30px;
  background-color: #e7e7e7;
  position: fixed;
  right: 50px;
  bottom: 50px;
}

.back-to-top a {
  position: absolute;
  top: 0px;
  left: 8px;
  color: #333;
  font-size: 25px;
}

.back-to-top a :hover {
  text-decoration: none;
}

header {
  background-color: white;
  height: 100px;
  border-bottom: 1px solid #999;
  margin-bottom: 30px;
}

header .inner-bg {
  height: 30px;
  background-color: #f5f5f5;
  font-size: 12px;
}

header .inner-bg .inner {
  width: 1200px;
  display: flex;
  justify-content: space-between;
  margin: auto;
  color: #777;
}

header .inner-bg .inner .inner-left {
  height: 30px;
}

header .inner-bg .inner .inner-left a {
  line-height: 30px;
  color: #777;
  text-decoration: underline;
}

header .inner-bg .inner .inner-left a:hover {
  background-color: #f5f5f5;
  color: orange;
  text-decoration: underline;
}

header .head {
  width: 1200px;
  height: 70px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header .head img {
  height: 70px;
}

.banner {
  width: 1200px;
  background-color: white;
  margin: auto;
  border-radius: 10px;
  padding-bottom: 10px;
}

.banner .head {
  height: 50px;
  line-height: 50px;
  padding-left: 50px;
  font-size: 18px;
  color: orange;
  border-bottom: 1px solid #999;
}

.banner .content table {
  margin: 0 auto;
  width: 920px;
}

.banner .content table tr {
  height: 80px;
  font-size: 18px;
  color: #666;
}

.banner .content table tr td input {
  padding-left: 10px;
  height: 40px;
  width: 400px;
  font-size: 18px;
  border: 1px solid #999;
  border-radius: 10px;
}

.banner .content table tr td input:focus {
  outline: none;
  border: 1px solid orange;
}

.banner .content table tr td:nth-of-type(1) {
  margin-top: 25px;
  width: 90px;
}

.banner .content table tr td:nth-of-type(1) label {
  float: right;
}

.banner .content table tr td:nth-of-type(2) {
  width: 402px;
}

.banner .content table tr td:nth-of-type(3) {
  padding-left: 10px;
  font-size: 14px;
  color: #999;
}

.banner .content table tr:nth-child(5) td:nth-of-type(2) {
  font-size: 14px;
  color: #999;
}

.banner .content table tr:nth-child(5) input {
  width: 100px;
  margin-right: 10px;
}

.banner .content .codeimg {
  margin-top: -20px;
  display: flex;
  align-items: center;
}

.banner .content .codeimg img {
  margin-left: 240px;
  height: 30px;
  margin-top: 5px;
}

.banner .content .codeimg a {
  vertical-align: text-bottom;
  text-decoration: underline;
  color: blue;
}

.banner .content input[type="submit"] {
  height: 50px;
  width: 250px;
  margin: 30px 0 10px 290px;
  font-size: 22px;
  color: white;
  font-weight: bold;
  text-align: center;
  border-radius: 10px;
  border: none;
  background-image: linear-gradient(to top, orange 0, red 100%);
  vertical-align: bottom;
}

.banner .content span {
  margin-left: 10px;
  display: inline-block;
  margin-bottom: 10px;
  color: #999;
  font-size: 14px;
}

.banner .content span a {
  color: #666;
  font-size: 14px;
  vertical-align: bottom;
  text-decoration: underline;
}

.banner .content span a:hover {
  color: orange;
}

.banner .content textarea {
  margin: auto;
  margin-top: 30px;
  margin-bottom: 10px;
  font-size: 14px;
  display: block;
  resize: none;
  border: 1px solid  #999;
}

.banner .content textarea:focus-visible {
  outline: orange auto 1px;
}

footer {
  height: 300px;
  margin-top: 20px;
  background-color: white;
}

footer .footer-inner {
  height: 200px;
  width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-around;
  border-bottom: 1px solid #333;
}

footer .footer-inner .module {
  width: 180px;
}

footer .footer-inner .module .module-head {
  padding: 20px 3px 10px 3px;
  border-bottom: 1px solid #bbbbbb;
  font-size: 16px;
  color: #999;
  font-weight: bold;
}

footer .footer-inner .module ul {
  list-style-type: disc;
  margin: 10px 20px;
  font-size: 14px;
}

footer .footer-inner .module ul li {
  margin: 5px 0;
}

footer .footer-inner .module ul li a {
  color: #666;
}

footer .footer-list {
  height: 60px;
  width: 1200px;
  margin: auto;
  margin-top: 20px;
}

footer .footer-list ul {
  width: 800px;
  display: flex;
  justify-content: space-between;
  color: #666;
  margin: auto;
}

footer .footer-list ul li div {
  width: 1px;
  background-color: #999;
  height: 100%;
}

footer .footer-list ul li a {
  font-size: 14px;
  color: #999;
}

footer .footer-list .last {
  font-size: 12px;
  margin-top: 10px;
  text-align: center;
  color: #999;
}
